I can give you a list of professional women UX experts who would have been delighted to have been asked (before now), and if you can't, then I believe you shouldn't be composing a panel for judging UX - because you don't know or haven't researched the field sufficiently well to even identify any women.
The assumption being made in this thread is that the six men are particular experts in the fields being judged: the best available experts.
From what I can see, the selected judges don't even work in those fields being judged (i.e. there is no reason to confer them this expertise), so the reasoning that the best available experts must have been chosen doesn't make any sense.
Redis isn't UX. The hackathon isn't about "product design" either.
It's a specific technology in a coding environment where 95% seems to be male. I don't know 1 female dba, which is more closely aligned than what Redis does ( I do know multiple in design/UX/Graphics )
Open source even has more males to females than tech in general.
> Redis isn't UX. The hackathon isn't about "product design" either.
Please check the parent link for the "Judging Criteria" section (two of the three strands are Usefulness and UX) and "Project Ideas" section (literally all product designs).
If you're going to pay for a prize competition in product design, when your company doesn't have product design as a core skill, then maybe it would be a good idea to find independent, expert judges of product design from outside of the company?
Sure, that's what I would do. But that part is up to them.